Comparing Costs of Solar Pool Heating Systems

Comparing Costs of Solar Pool Heating Systems

Prior to purchasing a solar pool heating system, you can estimate and compare the costs of using different solar pool heating systems. This will help you determine the potential cost savings of investing in a more efficient type of collector, which may require fewer panels for the collector area needed to heat your pool. Each solar collector should have a thermal rating, Btu/day or Btu/ft2/day. To help consumers compare solar collectors, the Solar Rating and Certification Corporation (SRCC), a non-profit organization, has established a rating system for solar collectors. SRCC information allows you to compare different types of collectors — for example, flat plate collectors compared to evacuated tube collectors. Ratings can be accessed using the following link:

If you just know the prices and thermal performance ratings (Btu/day) of collectors, you can use the following formula to calculate the energy output for each dollar spent or invested for different collectors:

Btu/day ÷ collector price = Btu/day per dollar spent

Example:

21,000 Btu ÷ $387 = 54.26 Btu/day per dollar spent

The cost of the system should not be the only factor in your selection process. When selecting a solar pool heater, it’s also important to consider all of the factors involved including warranty, level of customer service provided, customer reviews, solar company’s reputation, etc.